Perfectionnements aux entrées et aux bornes pour tubes à décharge et ampoules de toutes espèces,申请号FRD687831-传众专利搜索

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发明名称	Perfectionnements aux entrées et aux bornes pour tubes à décharge et ampoules de toutes espèces
摘要
申请公布号	FR687831(A)	申请公布日期	1930.08.13
申请号	FRD687831	申请日期	1930.01.08
申请人	COMPAGNIE FRANCAISE POUR L'EXPLOITATION DES PROCEDES THOMSON-HOUSTON	发明人
分类号	H01J5/50	主分类号	H01J5/50
代理机构		代理人
主权项
地址

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